Table 2.

Diarrhea and virus shedding in piglets in the challenge experiment

Sow group	Piglet no.	Days after oral challenge
		0	1	2	3	4	5
1	1	–a	–	+/+b	+/+	+/+	+/+
	2	–	–	+++a/+	++a/+	++/+	++/+
2	1	–	–	+/+	–	–	–
	2	–	–	+/+	+	+	+
3	1	–	–	+/+	+/+	+/+	+/+
	2	–	–	+/+	+/+	–	–
4	1	–	–	Diedc	NDd	ND	ND
	2	–	–	+++/+	+++/+	+++/+	+++/+

^a–, no diarrhea; +, mild diarrhea; ++, moderate diarrhea; +++, severe diarrhea

^bPEDV in feces was detected using RT-PCR

^cMortality attributed to PEDV infection confirmed by RT-PCR and necropsy diagnosis

^dNot determined due to the death of this piglet